Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 935 for “"Stratigraphic"”.
-
Quantitative Stratigraphic Inversion
… for systematic inversion of quantitative stratigraphic models. Quantitative stratigraphic modeling predicts stratigraphy using numerical simulations of geologic processes. Stratigraphic inversion methodically searches the parameter space in order to detect models which best represent the …
-
Computerized modeling of geotechnical stratigraphic data
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1989.
-
Folding of stratigraphic layers in ice domes
… model of the formation of recumbent folds in stratigraphic layers of ice sheets such as those in Greenland and Antarctica. The initial disturbances in the stratigraphy have their roots in transient dynamic processes and local rheological inhomogeneities, but the kinematics of even a simple ice …
-
Stratigraphic sedimentary inversion using paths in graphs
The problem of Stratigraphic Sedimentary Inversion consists of analysing quantities of given sediments deposited in sampled regions of a depositional space and calculating the total volumes that are necessary to match the sampled data in a forward depositional simulation. This is a central problem …
-
Lexicon of bedrock stratigraphic names of North Dakota
<p>This lexicon of bedrock stratigraphic names of North Dakota consists of a general definition of each unit as well as the history of stratigraphic nomenclature, An attempt was made to include all units for North Dakota whether formally or informally named, or cur rently being used in the state. …
-
Stratigraphic relationships of lower Permian rocks, Johnson County, Wyoming
Includes bibliographical references.
-
Tectono-stratigraphic evolution of the offshore Benin Basin, SW Nigeria
… presents an evaluation of the tectonic and stratigraphic evolution of the offshore Benin Basin based on the analysis of 2D and 3D seismic data, in addition to exploration well data of four closely-spaced wells. To date, little has been published on this part of the African Equatorial …
-
Stratigraphic Architecture and Paleogeography of the Juniata Formation, Central Appalachians
… of the Juniata Formation and (2) examining the stratigraphic architecture of the Juniata Formation. A combination of both outcrop and subsurface data was analyzed. Seven facies were identified in this study, including: (1) "proto-vertisols", (2) red shale/mudstone, (3) siltstone/silty mudstone …
-
Stratigraphic evolution of Las Vegas Bay, Lake Mead, Nevada: 1935--2002
Las Vegas Bay in Lake Mead, NV provides a unique mid-scale natural laboratory to study the effects changes in lake level, sediment supply, fluvial discharge and basin physiography have had on stratigraphy of the basin. Mapping, seismic, sidescan sonar and bathymetry surveys, in conjunction with …
-
Stratigraphic response to Cordilleran processes along the south central Andean margin
… geochronology datasets to establish a lithostratigraphic and chronostratigraphic record of Neogene Andean flat-slab subduction. Coeval cycles of upward coarsening stratigraphic trends, erosional unroofing, deformation, and magmatic high flux events provides new evidence of upper-plate …
-
STRATIGRAPHIC FRAMEWORK AND QUATERNARY PALEOLIMNOLOGY OF THE LAKE TURKANA RIFT, KENYA
<p>Lake sediments are some of the best archives of continental climate change, particularly in the tropics. This study is focused on three ~10m sediment cores and high-resolution seismic reflection data from Lake Turkana in northern Kenya. Lake Turkana is the world's largest desert lake and the …
-
Characterizing intrinsic and stratigraphic Q in VSP data with information measures
… pulse as it propagates. This effect, called stratigraphic filtering, or extrinsic attenuation, is characterized by strong attenuation and dispersion of seismic amplitudes. It is similar to, and in fact very difficult to distinguish from, the effect produced by processes of seismic amplitude …
-
A Subsurface Stratigraphic Study of the Middle Atoka, Sebastian County, Arkansas
<p>Raster log images were analyzed to study the subsurface stratigraphy of the Middle Atoka in the Arkoma Basin of the western portion (Sebastian County) of Arkansas. The most significant sandstone units of the Middle Atoka in this area were determined to be two generally coarsening-upward …
-
Evolution of tectonic and stratigraphic geometries in the Southern Outeniqua Basin
… Basin has been analysed within a tectono-stratigraphic framework by the interpretation of 3,700km of 2D seismic data constrained by five exploration wells, drilled on the adjacent shelf. The mapping of different fault families into distinct structural orientations, NE-SW, NNE-SSW and …
-
An Analytical Approach to Automate Stratigraphic Correlation using Well Logging Information
Stratigraphic correlation is an essential process and is a prerequisite to several processes in the industry. It is a tedious and time-consuming work process that prevents geoscientists from performing other relevant tasks and becomes a bottleneck to other workflows. With the rapid growth in …
-
Stratigraphic and Geochemical Expression of Early Cretaceous Environmental Change in Arctic Svalbard
… isotopic evidence for cooling episodes, sequence stratigraphic evidence for interpreted glacio-eustatic sea-level falls, and the presence of more enigmatic deposits such as dropstones and glendonites has led to a re-evaluation of the question of climatic dynamism during the Cretaceous. This …
-
Upper paleozoic stratigraphic history and provenance of the Farewell terrane, SW Alaska
Thesis (M.S.)--Michigan State University. Department of Geological Sciences, 2010
-
A Stratigraphic and Depositional Interpretation of a Sand Quarry in Middle Georgia
… and photos were taken to document the scale and stratigraphic sequences of the sediments. Petrified wood was collected throughout the two sand quarries indicating a terrestrial origin. Post-depositional modifications seen at some of sites include load and flame structures. Sediment samples were …
Page 1 of 47